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Number

1,159

1,159 is a composite number, odd, a calendar year.

Arithmetic Number Deficient Number Gapful Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree Year

Historical context — 1159 AD

Calendar year

Year 1159 (MCLIX) was a common year starting on Thursday of the Julian calendar.

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Year facts

Year type
Common year
Standard 365-day year; not divisible by 4 (or divisible by 100 but not 400).
Days in year
365
ISO weeks
53
Long year: contains 53 ISO weeks.
Started on
Thursday
January 1, 1159
Ended on
Thursday
December 31, 1159
Friday the 13ths
3
3 Friday the 13ths this year.
Decade
1150s
1150–1159
Century
12th century
1101–1200
Millennium
2nd millennium
1001–2000
Years ago
867
867 years before 2026.

In other calendars

Hebrew
4919 / 4920 AM
Rosh Hashanah falls in September/October.
Islamic Hijri
553 / 554 AH
Lunar calendar; year spans differ from Gregorian.
Chinese
Year of the zodiac:Earth zodiac:Rabbit
Sexagenary cycle position 16 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
1702 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri
537 / 538 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian
1151 / 1152 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
1081 / 1080 Saka
Indian national calendar; year starts in March.

Properties

Parity
Odd
Digit count
4
Digit sum
16
Digit product
45
Digital root
7
Palindrome
No
Bit width
11 bits
Reversed
9,511
Recamán's sequence
a(1,854) = 1,159
Square (n²)
1,343,281
Cube (n³)
1,556,862,679
Divisor count
4
σ(n) — sum of divisors
1,240
φ(n) — Euler's totient
1,080
Sum of prime factors
80

Primality

Prime factorization: 19 × 61

Nearest primes: 1,153 (−6) · 1,163 (+4)

Divisors & multiples

All divisors (4)
1 · 19 · 61 · 1159
Aliquot sum (sum of proper divisors): 81
Factor pairs (a × b = 1,159)
1 × 1159
19 × 61
First multiples
1,159 · 2,318 (double) · 3,477 · 4,636 · 5,795 · 6,954 · 8,113 · 9,272 · 10,431 · 11,590

Sums & aliquot sequence

As consecutive integers: 579 + 580 52 + 53 + … + 70 12 + 13 + … + 49
Aliquot sequence: 1,159 81 40 50 43 1 0 — terminates at zero

Representations

In words
one thousand one hundred fifty-nine
Ordinal
1159th
Roman numeral
MCLIX
Binary
10010000111
Octal
2207
Hexadecimal
0x487
Base64
BIc=
One's complement
64,376 (16-bit)
In other bases
ternary (3) 1120221
quaternary (4) 102013
quinary (5) 14114
senary (6) 5211
septenary (7) 3244
nonary (9) 1527
undecimal (11) 964
duodecimal (12) 807
tridecimal (13) 6b2
tetradecimal (14) 5cb
pentadecimal (15) 524

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵αρνθʹ
Mayan (base 20)
𝋢·𝋱·𝋳
Chinese
一千一百五十九
Chinese (financial)
壹仟壹佰伍拾玖
In other modern scripts
Eastern Arabic ١١٥٩ Devanagari ११५९ Bengali ১১৫৯ Tamil ௧௧௫௯ Thai ๑๑๕๙ Tibetan ༡༡༥༩ Khmer ១១៥៩ Lao ໑໑໕໙ Burmese ၁၁၅၉

Digit at this position in famous constants

π — Pi (π)
Digit 1,159 = 7
e — Euler's number (e)
Digit 1,159 = 0
φ — Golden ratio (φ)
Digit 1,159 = 1
√2 — Pythagoras's (√2)
Digit 1,159 = 6
ln 2 — Natural log of 2
Digit 1,159 = 0
γ — Euler-Mascheroni (γ)
Digit 1,159 = 9

Also seen as

Unicode codepoint
҇
Combining Cyrillic Pokrytie
U+0487
Non-spacing mark (Mn)

UTF-8 encoding: D2 87 (2 bytes).

Hex color
#000487
RGB(0, 4, 135)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.135.

Address
0.0.4.135
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.4.135

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 1159 first appears in π at position 921 of the decimal expansion (the 921ordinal-suffix:st digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.